Before the dinosaurs existed which is 99 999 999 999 999 years ago
You can stand on the moon surface if you can get there
Moon
the same as earths just a different moon
It is rocky with craters.
By meteors/asteroids crashing into the Moon.
Earths core
The moon's gravity is about 1/6th of the earth's.
because you touch yourself at night
It is possible that craters could have hit the moon.
See related links
the surface of the moon is rocky with lots of craters it is sadly not made of cheese.
Earths surface of gravity is 4.6m/s2 more than moons.